Builder&#39;s hardware



July 10, 1934.

E. H. JOHNSON 1,966,205

BUILDERS HARDWARE Filed June 8. 1931 2 Sheets-Sheet l WWI/W////////////////////47////// //v en for 5/1/07 15. 4/0/7/760/7 After/76s y 10, 1934- E. H. JOHNSON BUILDERS HARDWARE 2 Sheets-Sheet 2 FiledJune 8, 1931 ill I" Patented July 10, 1934 UNITED STATES PATENT OFFICEMy invention relates to builders hardware; and includes among itsobjects and advantagesthe provision of an improved door holder.

In the accompanying drawings:

, Figure l is a diagrammatic view of a door pro--, vided with a doorholder according to my invene Figure 2 is a sectional detail viewshowing the stop means ina retracted position;

Figure 3 is a sectional view of the yielding means associated with oneof the arms;

Figure 4 is a sectional view of the central pivot and adjacent portionsof the arm;

Figure 5 is a bottom plan. view of a portion of one of the arms;

Figure 6 is a top plan view of a portion of the companion arm; and HFigure '7 is a diagram of a machining operation.

In the embodiment selected to illustrate the invention, the holdercomprises arms 10 and 12 which are connected by a pintle 14. The pintlepasses through headportions 16 and 18 formed integrally with the arms 10and 12 respectively. One end of the arm 12 is pivotally connected with adoor 20 while one end of the arm 16 is similarly connected with a doorcasing 22. Attaching members 24 and 26 respectively connect the arms 12and 10 with the door 20 and the casing 22. The attaching members 24 and26 arepositioned in such a manner with re spect to the hinges 28 thatthe parts may be moved to either of the positions indicated in dottedand full lines in Figure 1.

In referring to Figure 1 it will be noted that the arms 10 and 12 definean angle A which is less than 180 when the door is in its full openposition, so that the arms will always move in a predetermined manner. Ihave provided means for preventing the arms 10 and 12 from moving beyondthe open position shown in Figure 1. The head 16 is provided with a lug29 which is positioned to engage a similar lug 30 upon the head 18 whenthe arms have been moved to the position shown. The lugs aresymmetrically arranged with respect to the center lines of the arms 10and 12 so that the arms will operate with equal facility even though thehinge 28 is positioned at the other side of the door casing. At thistime the opposite sides of the lugs will strike each other when the armsreach their full open position.

The heads 16 and 18 are respectively provided with central alignedopenings 34 and 36 for re- 55 ceiving the pintle 14. The opening 36 ispartly threaded for receiving the threaded portion of the pintle. Thesmooth portion of the pintle passes through the opening 34 and extendspart- 1y into the opening 36. This feature permits transfer of the loadat the point 40 so that the threaded portion of the pintle serves merelyasa means for holding the pintle in place. A nut 42 is positioned uponthe threaded end of the pintle and bears against a washer 44 upon thepintle between the nut and the head 18. This nut functions as a lock nutfor holding the pintle against shifting which would tighten or loosenthe bearing relation between the heads 16 and 18. A washer 46 ispositioned between the head 48 or" the pintle 14 and the head 16. Thenut 42 and the head 48 are provided with annular raised portions 50which prevent the nut and the head from scoring their respectivewashers.

Means for positively locking the arms 10 and g 12 in the full lineposition shown in Figure 1 with a force materially greater than that ofthe closing spring that may be associated with the door 20 or the doorholder, comprises a bolt 52 having. a tapered end. 54 arranged to enterone of a pair of recesses 56 and 58 when the arms. have been moved totheir full open position. After the device is installed as in Figure 1,the recess 58 has no function. If the holder were mounted to open in theother direction, the bolt 52 would cooperate with the recess 58 and notwith the recess 56. Thus the two recesses pro-' vide for mounting thedevice in any conceivable position.

The bolt 52 is urged in the direction of the head 16 by means of aspring 60 which is positioned within a bore 62 in a depending portion 64formed integrally with the head 18; One end of the spring bears againstthe bottom of the bore while the opposite end bears against the flange66 upon the bolt 52. Theend of the bolt above the flange 66 is slightlylargerindiameter than the remaining portion of the bolt, and passesthrough a sleeve 68. The sleeve 68 is provided with a pair of deepV-shaped grooves 70 r for receiving the ends of a pin '72 carried by thebolt. When the bolt is positioned so that the ends of the pin '72 alignwith the grooves '10, the tapered end 54 is free to enter the opening 56when the arms are moved to their open position, and will snap up intothe full line position of Figure 4 and tend to hold the door open. Thesleeve is also provided with a pair of smaller grooves 74 (see Figure 2)which are aligned at right angles to the grooves '70 for receiving theends of the pin '72 when the bolt is rotated int When the pin ispositioned in the grooves 74, the tapered end 54 will not extend abovethe face of the head 18 contacting with the head 16. The arms 10 and 12may be opened and closed at this time without interference from the bolt52. A handle 76 is fastened upon the outer end of the bolt so that thelatter may be rotated. The walls of the grooves function as cam surfacesso that the bolt 52 may be easily rotated for moving the bolt to itsretracted position.-

The recesses 56 and 58 are cylindrical. It will thus be seen that asharp corner will move against the tapered end 54 for depressing thebolt against the tension of the spring 60 when the door is forciblyclosed. The bolt 52 is resiliently urged in the direction of the head 10with a force sufficient to hold the door against a closing forcematerially greater than that of the closing spring for the door, butmaterially less than the hinges will stand without injury.

The heads 16 and 18 are recessed as at 78 and 80. When the bolt is notin its retracted position, the tapered end 54 will project into therecess 80 when it has moved beyond the ledge 82 (see Figure 5 The ledgesslope gently at 84 and 86. In cutting the recess 80 it is desirable toleave enough material at to permit the bore 62 to be threaded forreceiving the threaded sleeve 68. The sleeve is securely fastened byboring a small hole 92 in a. portion of the threads on the sleeve andthe head 18 for receiving a pin 94. The pin holds the sleeve againstrotation. The exposed end of the sleeve may be slotted as at 96 toreceive the end of a suitable tool for turning the sleeve.

Cushioning means is provided for damping the shock occurring when thelug 28 strikes the lug 30 when the arms 10 and 12 are moved abruptly tothe open position shown in Figure 1. The arm 12 comprises a portion 98and a sleeve 100. The portion 98 is provided with a reduced extension102 which extends into the sleeve. A spring 104 is mounted underrelatively heavy initial tension upon the extension 102 between anabutment 106 upon the extension and a retaining nut 108 having threadedrelation with the sleeve 100. One end of the sleeve is pivotallyconnected with the attaching member 26 by means of a pint-1e 110.

Any force in excess of that which is necessary to swing the door to itsopen position is absorbed by the spring 104. When the toe 28 strikes thetoe 30, any remaining force in excess of that which is necessary toswing the door to its open position is absorbed in the compression ofthe spring 104. A leather washer 112 is positioned upon the extension102 between the retaining nut 108 and the shoulder 114. The washereliminates the click which would otherwise occur by the sudden contactbetween the shoulder and the retaining nut.

Referring to Figure '7, the turning tool 116, with which the end of thebolt 52 is machined, is shaped with one smooth straight edge 118 whichforms the entire conical surface 54 at a single cut. The edge at 120 mayor may not simultaneously face off the end of the bolt.

In this way no tiny grooves are formed in the face of the conicalportion 52 during the machining, and after the bolt is case hardened,the surface is geometrically correct and at the same time smooth and ofconstant angle from the base of the cone to the top.

Without further elaboration, the foregoing will so fully explain myinvention that others may, by applying current knowledge, readily adaptthe same for use under various conditions of service.

I claimi 1. A door holder comprising rigid arms pivoted together, meanscarried by one arm for controlling relative movement of the armscomprising a bolt parallel to and offset from the pivotal connection forthe arms, resilient means urging said bolt into engagement with theother arm, an abutment sleeve having a cam-shaped edge encircling saidbolt, and a projection on the bolt arranged to engage said cam-shapededge, whereby rotation of the bolt upon its axis, in either direction,renders the bolt inoperative with respect to its engagement with saidother arm, continued or reverse rotation of said bolt in its retractedposition rendering the same operative with respect to said other arm.

2. A door holder comprising rigid arms pivoted together, means carriedby one arm for controlling relative movement of the arms comprising abolt parallel to and offset from the pivotal connection for the arms,the other arm having a bore of uniform diameter, said bolt having atapered end arranged to enter said bore when the arms have been moved toa predetermined position with respect to each other, a housing carriedby the arm supporting said bolt and enclosing the latter, resilientmeans positioned within said housing urging said bolt into engagementwith said other arm, and an abutment sleeve threaded into said housinghaving a cam-shaped edge encircling said bolt, and a projection on thebolt arranged to engage said cam-shaped edge, whereby rotation of thebolt'upon its axis in either direction renders. the bolt inoperativewith respect to its engagement with said other arm, continued or reverserotation of said bolt in its retracted position rendering the sameoperative with respect to said other arm, the tapered end of said boltbeing yieldingly held in said bore with sufficient force to resistnormal forces on the door, but yieldable to permit the door to closeupon application of abnormal forces.

ELVIN H. JOHNSON.

